Re: port-alpha/33073 (isp0: unable to load dma (22))

[Jason Thorpe <thorpej%me.com@localhost>]

> On Jul 21, 2021, at 12:00 PM, Tobias Nygren <tnn%netbsd.org@localhost> wrote:
> 
> The following reply was made to PR port-alpha/33073; it has been noted by GNATS.
> 
> From: Tobias Nygren <tnn%NetBSD.org@localhost>
> To: gnats-bugs%netbsd.org@localhost
> Cc: 
> Subject: Re: port-alpha/33073 (isp0: unable to load dma (22))
> Date: Wed, 21 Jul 2021 20:56:37 +0200
> 
> FWIW autonegotiation works fine in -current on a similar Tulip on
> PC164SX. It uses the same phy; the only difference I can see is:
> -DECchip 21143 Ethernet, pass 3.0
> +DECchip 21140A Ethernet, pass 2.2

Yah, the media handling is a little different on the 21143 vs 21140.  (Actually the media handling can be bonkers on all of the DEC Tulip variants, and I'm still in therapy for it all these years later...)

> cia0 at mainbus0: DECchip 2117x Core Logic Chipset (Pyxis), pass 2
> cia0: extended capabilities: 0x1<BWEN>
> cia0: using BWX for PCI config access
> pci0 at cia0 bus 0
> pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
> tlp0 at pci0 dev 6 function 0: DECchip 21140A Ethernet, pass 2.2
> tlp0: interrupting at eb164 irq 11
> tlp0: DEC DE500-AA, Ethernet address 00:00:f8:1a:4c:02
> nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 0
> nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

...but this is an excellent data point :-)

-- thorpej